We’re in the midst of a rebellion. The bottom and middle are pushing against the top. It’s a throwing off of old claims and it’s been going on for a while, but we’re seeing it more sharply after New Hampshire. This is not politics as usual, which by its nature is full of surprise. There’s something deep, suggestive, even epochal about what’s happening now.

I have thought for some time that there’s a kind of soft French Revolution going on in America, with the angry and blocked beginning to push hard against an oblivious elite. It is not only political. Yes, it is about the Democratic National Committee, that house of hacks, and about a Republican establishment owned by the donor class. But establishment journalism, which for eight months has been simultaneously at Donald Trump’s feet (“Of course you can call us on your cell from the bathtub for your Sunday show interview!”) and at his throat (“Trump supporters, many of whom are nativists and nationalists . . .”) is being rebelled against too. Their old standing as guides and gatekeepers? Gone, and not only because of multiplying platforms. Gloria Steinem thought she owned feminism, thought she was feminism. She doesn’t and isn’t. The Clintons thought they owned the party—they don’t. Hedge-funders thought they owned the GOP. Too bad they forgot to buy the base!

All this goes hand in hand with the general decline of America’s faith in its institutions. We feel less respect for almost all of them—the church, the professions, the presidency, the Supreme Court. The only formal national institution that continues to score high in terms of public respect (72% in the most recent Gallup poll) is the military.

A few years ago I gave a lecture to a class at West Point, the text of which was: You are entering the only U.S. institution left standing. Your prime responsibility throughout your careers will be to keep it respected. I then told them about the Dreyfus case. They had not heard of it. I explained how that scandal rocked public faith in a previously exalted institution, the French army, doing it and France lasting damage. And so your personal integrity is of the utmost importance, I said, as day by day that integrity creates the integrity of the military. The cadets actually listened to that part.

I mention this to say we are in a precarious position in the U.S. with so many of our institutions going down. Many of those pushing against the system have no idea how precarious it is or what they will be destroying. Those defending it don’t know how precarious its position is or even what they’re defending, or why. But people lose respect for a reason.

To New Hampshire: The rejection of the establishment’s preferred candidates in both major parties is a big moment. It is also understandable, the result of 15 years of failed presidencies. It is a gesture of rebuke toward the political class—move aside.

It’s said this is the year of anger but there’s a kind of grim practicality to Trump and Sanders supporters. They’re thinking: Let’s take a chance. Washington is incapable of reform or progress; it’s time to reach outside. Let’s take a chance on an old Brooklyn socialist. Let’s take a chance on the casino developer who talks on TV.

In doing so, they accept a decline in traditional political standards. You don’t have to have a history of political effectiveness anymore; you don’t even have to have run for office! “You’re so weirdly outside the system, you may be what the system needs.”

They are pouring their hope into uncertain vessels, and surely know it. Bernie Sanders is an actual radical: He would fundamentally change an economic system that imperfectly but for two centuries made America the wealthiest country in the history of the world. In the young his support is understandable: They have never been taught anything good about capitalism and in their lifetimes have seen it do nothing—nothing—to protect its own reputation.

It is middle-aged Sanders supporters who are more interesting. They know what they’re turning their backs on. They know they’re throwing in the towel. My guess is they’re thinking something like: Don’t aim for great now, aim for safe. Terrorism, a world turning upside down, my kids won’t have it better—let’s just try to be safe, more communal.

A shrewdness in Sanders and Trump backers: They share one faith in Washington, and that is in its ability to wear anything down. They think it will moderate Bernie, take the edges off Trump. For thus reason they don’t see their choices as so radical.

As for Mr. Trump, it is not without meaning that his supporters have had eight months to measure the cost of satisfying their anger by voting for him. In New Hampshire, 35% of the electorate decided that for all his drama and uncertainty they would back him.

The mainstream journalistic mantra is that the GOP is succumbing to nativism, nationalism and the culture of celebrity. That allows them to avoid taking seriously Mr. Trump’s issues: illegal immigration and Washington’s 15-year, bipartisan refusal to stop it; political correctness and how it is strangling a free people; and trade policies that have left the American working class displaced, adrift and denigrated. Mr. Trump’s popularity is propelled by those issues and enabled by his celebrity.

In winning, Donald Trump threw over the GOP donor class. Political professionals don’t fully appreciate that, but normal Americans see it. They get that the guy with money just slapped silly the guys with money. Every hedge-fund billionaire donor should be blinking in pain. Some investment!

This leads me to Citizens United. Conservatives applauded that Supreme Court decision because it allowed Republicans to counter the effect of union money that goes to Democrats. But Citizens United gave the rich too much sway in the GOP. The party was better off when it relied on Main Street. It meant they had to talk to Main Street.

Mr. Trump is a clever man with his finger on the pulse, but his political future depends on two big questions. The first is: Is he at all a good man? Underneath the foul mouthed flamboyance is he in it for America? The second: Is he fully stable? He acts like a nut, calling people bimbos, flying off the handle with grievances. Is he mature, reliable? Is he at all a steady hand?

Political professionals think these are side questions. “Let’s accuse him of not being conservative!” But they are the issue. Because America doesn’t deliberately elect people it thinks base, not to mention crazy.

Anyway, we are in some kind of moment. Congratulations to the establishments of both parties for getting us here. They are the authors of the rebellion; they are a prime thing being rebelled against.

Connected to that, something I’ve noticed. In Washington there used to be a widespread cliché: “God protects drunks, children and the United States of America.” I’m in Washington a lot, and I’ve noticed no one says that anymore. They stopped 10 or 15 years ago. I wonder what that means.